odd vs rummy

odd is not a noun while rummy is a noun.

Word	Noun	Adjective	Verb	Adverb
odd	No	Yes	No	No
rummy	Yes	Yes	No	No

As adjectives, odd and rummy are synonyms defined as:

Other synonyms of odd include curious, funny, peculiar, queer, rum, singular.

odd (noun)	rummy (noun)
	a card game based on collecting sets and sequences; the winner is the first to meld all their cards
	a chronic drinker

odd (adjective)	rummy (adjective)
not divisible by two	beyond or deviating from the usual or expected
an indefinite quantity more than that specified
of the remaining member of a pair
beyond or deviating from the usual or expected
not used up
not easily explained